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8 AFLOAT.com.au December 2016
Ferries causing massive damage to
river foreshore
Should your editorial in November Afloat start as powerful
an opinion wave as the wave from a Sydney RiverCat, Sydney
Ferries will be powerless to resist.
In support I can add first hand the reports of the destructive
power of these vessels and that their wash acts in a completely
different way to the bow wave from a displacement or planning hull.
The first action is for the water level to drop (by up to a metre)
then slam back in. My observations are that this happens twice
and then settles.
It’s the “sucking back” that is the most damaging as it tends
to remove grout and mortar from between stone work typically
used as seawalls. Once the bond between the stonework is broken,
this action then sets to work on the ground behind the wall.
Roger Kyle is suffering a different problem from most as he is
adjacent to Abbotsford ferry wharf. The “suction wave” is not so
evident there. Roger is most likely getting all the material being
scoured from his neighbours.
heads in and act responsibly before they wreck it for everyone.
Fishers please incinerate any unwanted line; or wrap into a
tight ball and tie it off before dropping it into a bin otherwise it
will go on entangling birds when it gets to the rubbish tip.
If you hook a bird don’t just cut it free. These days most
people carry a smart phone. Google ‘bird rescue’ in your area
to find a wildlife service that can help.
Rowley Goonan,
Gold Coast, QLD.
While the RiverCats are great method of transport, and an
amazing tourist attraction on our wonderful river, they are causing
massive damage to the river foreshore.
John Goldthorpe,
Baulkham Hills, NSW.
RiverCat wake damage
I sincerely thank you for putting this issue back on the agenda.
Sadly, upon reading your Editor’s Column (Afloat Nov’16), I am
left with the understanding that decision making in this regard
is always going to be politically focused, rather than economic
or environmental.
At a “meet the candidates” forum before the last state
election, I described the problem to the candidates for Ryde,
and Mr Dominello, who is now the NSW Minister for Innovation,
remarked that my suggestion of slowing the off-peak ferries to
an environmentally acceptable speed was “eminently do-able”.
Of course it has not been done!
I do not wholly blame the politicians for this inaction. To
slow the ferries would incur the wrath of many ferry users who
have absolutely no idea of the damage that their services cause.
Show these people three semitrailers blasting line abreast
down the highway and they would be appalled, yet that represents
the same power as one RiverCat ferry –1,000 horsepower.
Those who care about the river have failed to make the case
in the “court of public opinion”. To enable the politicians to make
this important change, they need public understanding of the
problem and that requires compelling images to display the
rapidly increasing damage caused by the RiverCats.
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